@article{article414dd1f2,
title   = {The determination of R & D: empirical evidence on the role of unions},
author = {Menezes-Filho, Naércio Aquino and Ulph, David and Van Reenen, John},
year = {1998},
doi = {10.1016/s0014-2921(97)00140-2},
journal   = {European Economic Review}
}